TypeError if setuptools_rust are used and python-distutils-extra are installed

[mgorny]

I'm sorry if this is the wrong place to report this but I'm not really sure where the problem lies and setuptools_rust just happens to be at the end of traceback ;-).

I've received a bug report from a Gentoo user whose trying to build cryptography (which uses setuptools-rust) on a system where python-distutils-extra is installed as well. An attempt to call build command results in the following traceback:

Traceback (most recent call last):
  File "/tmp/portage/dev-python/cryptography-36.0.2/work/cryptography-36.0.2/setup.py", line 39, in <module>
    setup(
  File "/usr/lib/python3.10/site-packages/setuptools/__init__.py", line 87, in setup
    return distutils.core.setup(**attrs)
  File "/usr/lib/python3.10/site-packages/setuptools/_distutils/core.py", line 148, in setup
    return run_commands(dist)
  File "/usr/lib/python3.10/site-packages/setuptools/_distutils/core.py", line 163, in run_commands
    dist.run_commands()
  File "/usr/lib/python3.10/site-packages/setuptools/_distutils/dist.py", line 967, in run_commands
    self.run_command(cmd)
  File "/usr/lib/python3.10/site-packages/setuptools/dist.py", line 1214, in run_command
    super().run_command(command)
  File "/usr/lib/python3.10/site-packages/setuptools/_distutils/dist.py", line 985, in run_command
    cmd_obj.ensure_finalized()
  File "/usr/lib/python3.10/site-packages/setuptools/_distutils/cmd.py", line 107, in ensure_finalized
    self.finalize_options()
  File "/usr/lib/python3.10/site-packages/DistUtilsExtra/command/build_extra.py", line 57, in finalize_options
    distutils.command.build.build.finalize_options(self)
  File "/usr/lib/python3.10/site-packages/setuptools_rust/setuptools_ext.py", line 264, in finalize_options
    super().finalize_options()
TypeError: super(type, obj): obj must be an instance or subtype of type

Similar problems occur when calling other setup.py commands or the PEP517 backend.